print STDERR "\$hystackPatt[$j] = $haystackPatt[$j]\n";
print STDERR "\$rxHaystack[$j] = $rxHaystack[$j]\n";
print STDERR "BEFORE: \$text_seqs[$i] = $text_seqs[$i]\n";
$text_seqs[$i] =~ s{$rxHaystack[$j]}{<span class=$class[$a]>$1</span>}gmx;
print STDERR "AFTER: \$text_seqs[$i] = $text_seqs[$i]\n";